English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/97536
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:

Title

AtCPK1 calcium-dependent protein kinase mediates pathogen resistance in Arabidopsis

AuthorsCoca, María ; San Segundo, Blanca
Issue Date2010
PublisherBlackwell Publishing
CitationPlant Journal 63: 526- 540 (2010)
AbstractIn mammals, lipid bodies play a key role during pathological and infectious diseases. However, our knowledge on the function of plant lipid bodies, apart from their role as the major site of lipid storage in seed tissues, remains limited. Here, we provide evidence that a calcium-dependent protein kinase (CPK) mediates pathogen resistance in Arabidopsis. AtCPK1 expression is rapidly induced by fungal elicitors. Loss-of-function mutants of AtCPK1 exhibit higher susceptibility to pathogen infection compared to wild-type plants. Conversely, over-expression of AtCPK1 leads to accumulation of salicylic acid (SA) and constitutive expression of SA-regulated defence and disease resistance genes, which, in turn, results in broad-spectrum protection against pathogen infection. Expression studies in mutants affected in SA-mediated defence responses revealed an interlocked feedback loop governing AtCPK1 expression and components of the SA-dependent signalling pathway. Moreover, we demonstrate the dual localization of AtCPK1 in lipid bodies and peroxisomes. Overall, our findings identify AtCPK1 as a component of the innate immune system of Arabidopsis plants. © 2010 Blackwell Publishing Ltd.
URIhttp://hdl.handle.net/10261/97536
DOIhttp://dx.doi.org/10.1111/j.1365-313X.2010.04255.x
Identifiersdoi: 10.1111/j.1365-313X.2010.04255.x
issn: 0960-7412
Appears in Collections:(CRAG) Artículos
Files in This Item:
File Description SizeFormat 
CocaSanSegundo_TPJ2010.pdf1,71 MBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.